1 [LICENSING] !! 1 [LICENSING]
2 2
3 ReiserFS is hereby licensed under the GNU Gene 3 ReiserFS is hereby licensed under the GNU General
4 Public License version 2. 4 Public License version 2.
5 5
6 Source code files that contain the phrase "lic 6 Source code files that contain the phrase "licensing governed by
7 reiserfs/README" are "governed files" througho 7 reiserfs/README" are "governed files" throughout this file. Governed
8 files are licensed under the GPL. The portion 8 files are licensed under the GPL. The portions of them owned by Hans
9 Reiser, or authorized to be licensed by him, h 9 Reiser, or authorized to be licensed by him, have been in the past,
10 and likely will be in the future, licensed to 10 and likely will be in the future, licensed to other parties under
11 other licenses. If you add your code to gover 11 other licenses. If you add your code to governed files, and don't
12 want it to be owned by Hans Reiser, put your c 12 want it to be owned by Hans Reiser, put your copyright label on that
13 code so the poor blight and his customers can 13 code so the poor blight and his customers can keep things straight.
14 All portions of governed files not labeled oth 14 All portions of governed files not labeled otherwise are owned by Hans
15 Reiser, and by adding your code to it, widely 15 Reiser, and by adding your code to it, widely distributing it to
16 others or sending us a patch, and leaving the 16 others or sending us a patch, and leaving the sentence in stating that
17 licensing is governed by the statement in this 17 licensing is governed by the statement in this file, you accept this.
18 It will be a kindness if you identify whether 18 It will be a kindness if you identify whether Hans Reiser is allowed
19 to license code labeled as owned by you on you 19 to license code labeled as owned by you on your behalf other than
20 under the GPL, because he wants to know if it 20 under the GPL, because he wants to know if it is okay to do so and put
21 a check in the mail to you (for non-trivial im 21 a check in the mail to you (for non-trivial improvements) when he
22 makes his next sale. He makes no guarantees a 22 makes his next sale. He makes no guarantees as to the amount if any,
23 though he feels motivated to motivate contribu 23 though he feels motivated to motivate contributors, and you can surely
24 discuss this with him before or after contribu 24 discuss this with him before or after contributing. You have the
25 right to decline to allow him to license your 25 right to decline to allow him to license your code contribution other
26 than under the GPL. 26 than under the GPL.
27 27
28 Further licensing options are available for co 28 Further licensing options are available for commercial and/or other
29 interests directly from Hans Reiser: hans@reis 29 interests directly from Hans Reiser: hans@reiser.to. If you interpret
30 the GPL as not allowing those additional licen 30 the GPL as not allowing those additional licensing options, you read
31 it wrongly, and Richard Stallman agrees with m 31 it wrongly, and Richard Stallman agrees with me, when carefully read
32 you can see that those restrictions on additio 32 you can see that those restrictions on additional terms do not apply
33 to the owner of the copyright, and my interpre 33 to the owner of the copyright, and my interpretation of this shall
34 govern for this license. !! 34 govern for this license.
35 35
36 Finally, nothing in this license shall be inte 36 Finally, nothing in this license shall be interpreted to allow you to
37 fail to fairly credit me, or to remove my cred 37 fail to fairly credit me, or to remove my credits, without my
38 permission, unless you are an end user not red 38 permission, unless you are an end user not redistributing to others.
39 If you have doubts about how to properly do th 39 If you have doubts about how to properly do that, or about what is
40 fair, ask. (Last I spoke with him Richard was 40 fair, ask. (Last I spoke with him Richard was contemplating how best
41 to address the fair crediting issue in the nex 41 to address the fair crediting issue in the next GPL version.)
42 42
43 [END LICENSING] 43 [END LICENSING]
44 44
45 Reiserfs is a file system based on balanced tr 45 Reiserfs is a file system based on balanced tree algorithms, which is
46 described at https://reiser4.wiki.kernel.org/i !! 46 described at http://devlinux.com/namesys.
47 47
48 Stop reading here. Go there, then return. 48 Stop reading here. Go there, then return.
49 49
50 Send bug reports to yura@namesys.botik.ru. 50 Send bug reports to yura@namesys.botik.ru.
51 51
52 mkreiserfs and other utilities are in reiserfs 52 mkreiserfs and other utilities are in reiserfs/utils, or wherever your
53 Linux provider put them. There is some disagr 53 Linux provider put them. There is some disagreement about how useful
54 it is for users to get their fsck and mkreiser 54 it is for users to get their fsck and mkreiserfs out of sync with the
55 version of reiserfs that is in their kernel, w 55 version of reiserfs that is in their kernel, with many important
56 distributors wanting them out of sync.:-) Plea 56 distributors wanting them out of sync.:-) Please try to remember to
57 recompile and reinstall fsck and mkreiserfs wi 57 recompile and reinstall fsck and mkreiserfs with every update of
58 reiserfs, this is a common source of confusion 58 reiserfs, this is a common source of confusion. Note that some of the
59 utilities cannot be compiled without accessing 59 utilities cannot be compiled without accessing the balancing code
60 which is in the kernel code, and relocating th 60 which is in the kernel code, and relocating the utilities may require
61 you to specify where that code can be found. 61 you to specify where that code can be found.
62 62
63 Yes, if you update your reiserfs kernel module 63 Yes, if you update your reiserfs kernel module you do have to
64 recompile your kernel, most of the time. The 64 recompile your kernel, most of the time. The errors you get will be
65 quite cryptic if your forget to do so. 65 quite cryptic if your forget to do so.
66 66
67 Real users, as opposed to folks who want to ha 67 Real users, as opposed to folks who want to hack and then understand
68 what went wrong, will want REISERFS_CHECK off. 68 what went wrong, will want REISERFS_CHECK off.
69 69
70 Hideous Commercial Pitch: Spread your developm 70 Hideous Commercial Pitch: Spread your development costs across other OS
71 vendors. Select from the best in the world, n 71 vendors. Select from the best in the world, not the best in your
72 building, by buying from third party OS compon 72 building, by buying from third party OS component suppliers. Leverage
73 the software component development power of th 73 the software component development power of the internet. Be the most
74 aggressive in taking advantage of the commerci 74 aggressive in taking advantage of the commercial possibilities of
75 decentralized internet development, and add va 75 decentralized internet development, and add value through your branded
76 integration that you sell as an operating syst 76 integration that you sell as an operating system. Let your competitors
77 be the ones to compete against the entire inte 77 be the ones to compete against the entire internet by themselves. Be
78 hip, get with the new economic trend, before y 78 hip, get with the new economic trend, before your competitors do. Send
79 email to hans@reiser.to. 79 email to hans@reiser.to.
80 80
81 To understand the code, after reading the webs 81 To understand the code, after reading the website, start reading the
82 code by reading reiserfs_fs.h first. 82 code by reading reiserfs_fs.h first.
83 83
84 Hans Reiser was the project initiator, primary 84 Hans Reiser was the project initiator, primary architect, source of all
85 funding for the first 5.5 years, and one of th 85 funding for the first 5.5 years, and one of the programmers. He owns
86 the copyright. 86 the copyright.
87 87
88 Vladimir Saveljev was one of the programmers, 88 Vladimir Saveljev was one of the programmers, and he worked long hours
89 writing the cleanest code. He always made the 89 writing the cleanest code. He always made the effort to be the best he
90 could be, and to make his code the best that i 90 could be, and to make his code the best that it could be. What resulted
91 was quite remarkable. I don't think that money 91 was quite remarkable. I don't think that money can ever motivate someone
92 to work the way he did, he is one of the most 92 to work the way he did, he is one of the most selfless men I know.
93 93
94 Yura helps with benchmarking, coding hashes, a 94 Yura helps with benchmarking, coding hashes, and block pre-allocation
95 code. 95 code.
96 96
97 Anatoly Pinchuk is a former member of our team 97 Anatoly Pinchuk is a former member of our team who worked closely with
98 Vladimir throughout the project's development. 98 Vladimir throughout the project's development. He wrote a quite
99 substantial portion of the total code. He rea 99 substantial portion of the total code. He realized that there was a
100 space problem with packing tails of files for 100 space problem with packing tails of files for files larger than a node
101 that start on a node aligned boundary (there a 101 that start on a node aligned boundary (there are reasons to want to node
102 align files), and he invented and implemented 102 align files), and he invented and implemented indirect items and
103 unformatted nodes as the solution. 103 unformatted nodes as the solution.
104 104
105 Konstantin Shvachko was taking part in the ear !! 105 Konstantin Shvachko, with the help of the Russian version of a VC,
106 !! 106 tried to put me in a position where I was forced into giving control
107 Mikhail Gilula was a brilliant innovator that !! 107 of the project to him. (Fortunately, as the person paying the money
>> 108 for all salaries from my dayjob I owned all copyrights, and you can't
>> 109 really force takeovers of sole proprietorships.) This was something
>> 110 curious, because he never really understood the value of our project,
>> 111 why we should do what we do, or why innovation was possible in
>> 112 general, but he was sure that he ought to be controlling it. Every
>> 113 innovation had to be forced past him while he was with us. He added
>> 114 two years to the time required to complete reiserfs, and was a net
>> 115 loss for me. Mikhail Gilula was a brilliant innovator who also left
>> 116 in a destructive way that erased the value of his contributions, and
>> 117 that he was shown much generosity just makes it more painful.
108 118
109 Grigory Zaigralin was an extremely effective s 119 Grigory Zaigralin was an extremely effective system administrator for
110 our group. 120 our group.
111 121
112 Igor Krasheninnikov was wonderful at hardware 122 Igor Krasheninnikov was wonderful at hardware procurement, repair, and
113 network installation. 123 network installation.
114 124
115 Jeremy Fitzhardinge wrote the teahash.c code, 125 Jeremy Fitzhardinge wrote the teahash.c code, and he gives credit to a
116 textbook he got the algorithm from in the code 126 textbook he got the algorithm from in the code. Note that his analysis
117 of how we could use the hashing code in making 127 of how we could use the hashing code in making 32 bit NFS cookies work
118 was probably more important than the actual al 128 was probably more important than the actual algorithm. Colin Plumb also
119 contributed to it. 129 contributed to it.
120 130
121 Chris Mason dived right into our code, and in 131 Chris Mason dived right into our code, and in just a few months produced
122 the journaling code that dramatically increase 132 the journaling code that dramatically increased the value of ReiserFS.
123 He is just an amazing programmer. 133 He is just an amazing programmer.
124 134
125 Igor Zagorovsky is writing much of the new ite 135 Igor Zagorovsky is writing much of the new item handler and extent code
126 for our next major release. 136 for our next major release.
127 137
128 Alexander Zarochentcev (sometimes known as zam 138 Alexander Zarochentcev (sometimes known as zam, or sasha), wrote the
129 resizer, and is hard at work on implementing a 139 resizer, and is hard at work on implementing allocate on flush. SGI
130 implemented allocate on flush before us for XF 140 implemented allocate on flush before us for XFS, and generously took
131 the time to convince me we should do it also. 141 the time to convince me we should do it also. They are great people,
132 and a great company. 142 and a great company.
133 143
134 Yuri Shevchuk and Nikita Danilov are doing squ 144 Yuri Shevchuk and Nikita Danilov are doing squid cache optimization.
135 145
136 Vitaly Fertman is doing fsck. 146 Vitaly Fertman is doing fsck.
137 147
138 Jeff Mahoney, of SuSE, contributed a few clean 148 Jeff Mahoney, of SuSE, contributed a few cleanup fixes, most notably
139 the endian safe patches which allow ReiserFS t 149 the endian safe patches which allow ReiserFS to run on any platform
140 supported by the Linux kernel. 150 supported by the Linux kernel.
141 151
142 SuSE, IntegratedLinux.com, Ecila, MP3.com, big 152 SuSE, IntegratedLinux.com, Ecila, MP3.com, bigstorage.com, and the
143 Alpha PC Company made it possible for me to no 153 Alpha PC Company made it possible for me to not have a day job
144 anymore, and to dramatically increase our staf 154 anymore, and to dramatically increase our staffing. Ecila funded
145 hypertext feature development, MP3.com funded 155 hypertext feature development, MP3.com funded journaling, SuSE funded
146 core development, IntegratedLinux.com funded s 156 core development, IntegratedLinux.com funded squid web cache
147 appliances, bigstorage.com funded HSM, and the 157 appliances, bigstorage.com funded HSM, and the alpha PC company funded
148 the alpha port. Many of these tasks were help 158 the alpha port. Many of these tasks were helped by sponsors other
149 than the ones just named. SuSE has helped in 159 than the ones just named. SuSE has helped in much more than just
150 funding.... 160 funding....
151 161
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